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Definition of singlet

singlet

/ˈsɪŋɡlɪt/
sin · glet

Plural:singlets
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singlet Lexical Profile

singlet Game Scores & Validity

• noun

1

A sleeveless garment worn under or instead of a shirt, or a tight-fitting one-piece garment worn by athletes in sports such as wrestling, weightlifting, and track and field.

Example

"The runner adjusted his team singlet before stepping up to the starting line."


2

In quantum mechanics and spectroscopy, a quantum state of a system with a total spin quantum number of zero, resulting in a single spectral line that does not split in a magnetic field.

Example

"In the ground state, the two paired electrons occupy a stable singlet configuration."


3

In optics, a simple lens consisting of a single optical element, or in gemology, an assembled imitation gem made from a single piece of glass or stone.

Example

"A simple singlet lens often suffers from chromatic aberration unless paired with a second corrective element."

Synonyms
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Antonyms
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Word Origin & Etymology

Coined in the early 18th century from 'single' plus the suffix '-et', modeled on 'doublet' to denote a lighter, unlined garment as opposed to a lined or quilted doublet.

Cite this Entry


Wordmom. (2026). Definition of Singlet. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/singlet
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